Glacier pool chillers are evaporative coolers built and tested in Houston. They connect to your existing return line, run on 115V, and can drop pool temperature over 10°F overnight. This guide covers what owners report, how the three models compare, and which one fits your pool.
Glacier Pool Cooler Reviews: What Customers Say
Feedback on Glacier swimming pool chillers is consistently positive. The recurring themes include substantial (and rapid!) temperature drops, low electricity cost, and a low noise level comparable to a pool pump.
"Takes my pool from 92 to 83 ballpark in summer. I run mine for 12 hours during the day. I never notice a real change on my electric bill - it's basically a big fan."
TroubleFreePool member, via Glacier vs heat pump chiller threadOthers in the same thread reported 8-10°F overnight drops in Tulsa, OK during peak summer. A separate thread covering Glacier pool chillers in Florida echoes the same results. The most consistent criticism is noise. We advise against placing the unit near bedroom windows, and most people run their chiller overnight on a timer while they sleep.
Glacier Swimming Pool Chiller Model Comparison
The GPC-210, Glacier's most popular residential model.
| Spec | GPC-25 | GPC-210 | GPC-215 |
|---|---|---|---|
| BTU/hr | 75,000 | 150,000 | 225,000 |
| Max pool size | 20,000 gal | 30,000 gal | 45,000 gal |
| Water flow | 30 gpm | 30 gpm | 45 gpm |
| Air volume | 2,118 cfm | 3,531 cfm | 4,943 cfm |
| Run load | 2.66 A | 8.5 A | 12.5 A |
| Voltage | 115V / 1-ph | 115V / 1-ph | 115V / 1-ph |
| Footprint | 32" dia x 52" | 43" dia x 55" | 43" dia x 60" |
| Weight | 85 lbs | 123 lbs | 139 lbs |
| Product page | GPC-25 | GPC-210 | GPC-215 |
BTU ratings at design condition: 95°F water in, 85°F ambient wet bulb. Overnight performance typically exceeds these numbers.
Glacier Pool Cooler GPC-25 vs GPC-210
Both models flow water at 30 gpm, which makes them look similar on paper. The real difference is air volume: the GPC-210 moves 3,531 cfm versus 2,118 cfm - a 67% increase - which doubles the BTU output. More air through the same water means more evaporation and more heat removed per hour.
For a 15,000-gallon pool over an 8-hour night, that is roughly 5-7°F with the GPC-25 versus 9.5-13°F with the GPC-210 depending on your climate. Compress that to a 6-hour overnight window and the GPC-25 barely moves the needle; the GPC-210 still delivers a meaningful drop.
For pools under 15,000 gallons with full overnight run hours available, the GPC-25 works. For pools 15,000-25,000 gallons or anyone running a tight overnight schedule, the GPC-210 is the right call.
Glacier Swimming Pool Cooler GPC-210 vs GPC-215
Same 43-inch footprint, 50% more output. The GPC-215 bumps flow to 45 gpm, steps up to a 1/2 hp motor, and delivers 225,000 BTU/hr. It draws 12.5 amps versus 8.5 amps - still well within a standard 20-amp circuit.
For pools under 25,000 gallons the GPC-210 is sufficient. For 25,000-45,000 gallons, or anyone who wants faster cooling on any pool in that range, the GPC-215 is the right choice.
Glacier Swimming Pool Cooler Performance by City
Estimated temperature drop after an 8-hour overnight run, based on published BTU ratings scaled for each city's typical overnight wet bulb. The 2-night figure is the total net drop from your starting temperature after two nights of running, assuming 75% daytime recovery between nights - not an additional drop on top of night one.
8-hour overnight run per night. Ranges reflect real-world variance. Results vary with sun exposure and pool cover use.
Automation and Remote Control
Glacier chillers do not include a built-in thermostat. Cooling is controlled by run time. Because all three models plug into a standard 115V outlet, any Wi-Fi smart plug or outlet timer gives you scheduling and remote control. Pentair IntelliCenter and EasyTouch users can wire the unit through a power relay and control it as a scheduled circuit. A detailed TroubleFreePool discussion on Pentair integration covers this in depth. The practical approach most owners use: run overnight on a fixed schedule, check your morning temperature for a few days, and adjust hours until you hit your target.
Which Glacier Pool Cooler Should You Buy?
Under 15,000 gallons with flexible run hours: GPC-25. Between 15,000 and 25,000 gallons, or running a tight overnight window: GPC-210. Over 25,000 gallons: GPC-215. Not sure? Call us at 800-809-3741 and we will size it in a few minutes.
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